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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /tools/perf/arch/x86/util/mem-events.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/perf/arch/x86/util/mem-events.c')
-rw-r--r-- | tools/perf/arch/x86/util/mem-events.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/tools/perf/arch/x86/util/mem-events.c b/tools/perf/arch/x86/util/mem-events.c new file mode 100644 index 000000000..efc0fae9e --- /dev/null +++ b/tools/perf/arch/x86/util/mem-events.c @@ -0,0 +1,92 @@ +// SPDX-License-Identifier: GPL-2.0 +#include "util/pmu.h" +#include "util/env.h" +#include "map_symbol.h" +#include "mem-events.h" +#include "linux/string.h" +#include "env.h" + +static char mem_loads_name[100]; +static bool mem_loads_name__init; +static char mem_stores_name[100]; + +#define MEM_LOADS_AUX 0x8203 +#define MEM_LOADS_AUX_NAME "{%s/mem-loads-aux/,%s/mem-loads,ldlat=%u/}:P" + +#define E(t, n, s) { .tag = t, .name = n, .sysfs_name = s } + +static struct perf_mem_event perf_mem_events_intel[PERF_MEM_EVENTS__MAX] = { + E("ldlat-loads", "%s/mem-loads,ldlat=%u/P", "%s/events/mem-loads"), + E("ldlat-stores", "%s/mem-stores/P", "%s/events/mem-stores"), + E(NULL, NULL, NULL), +}; + +static struct perf_mem_event perf_mem_events_amd[PERF_MEM_EVENTS__MAX] = { + E(NULL, NULL, NULL), + E(NULL, NULL, NULL), + E("mem-ldst", "ibs_op//", "ibs_op"), +}; + +struct perf_mem_event *perf_mem_events__ptr(int i) +{ + if (i >= PERF_MEM_EVENTS__MAX) + return NULL; + + if (x86__is_amd_cpu()) + return &perf_mem_events_amd[i]; + + return &perf_mem_events_intel[i]; +} + +bool is_mem_loads_aux_event(struct evsel *leader) +{ + if (perf_pmu__find("cpu")) { + if (!pmu_have_event("cpu", "mem-loads-aux")) + return false; + } else if (perf_pmu__find("cpu_core")) { + if (!pmu_have_event("cpu_core", "mem-loads-aux")) + return false; + } + + return leader->core.attr.config == MEM_LOADS_AUX; +} + +char *perf_mem_events__name(int i, char *pmu_name) +{ + struct perf_mem_event *e = perf_mem_events__ptr(i); + + if (!e) + return NULL; + + if (i == PERF_MEM_EVENTS__LOAD) { + if (mem_loads_name__init && !pmu_name) + return mem_loads_name; + + if (!pmu_name) { + mem_loads_name__init = true; + pmu_name = (char *)"cpu"; + } + + if (pmu_have_event(pmu_name, "mem-loads-aux")) { + scnprintf(mem_loads_name, sizeof(mem_loads_name), + MEM_LOADS_AUX_NAME, pmu_name, pmu_name, + perf_mem_events__loads_ldlat); + } else { + scnprintf(mem_loads_name, sizeof(mem_loads_name), + e->name, pmu_name, + perf_mem_events__loads_ldlat); + } + return mem_loads_name; + } + + if (i == PERF_MEM_EVENTS__STORE) { + if (!pmu_name) + pmu_name = (char *)"cpu"; + + scnprintf(mem_stores_name, sizeof(mem_stores_name), + e->name, pmu_name); + return mem_stores_name; + } + + return (char *)e->name; +} |